The 3.3 scripts themselves are still useful as rough guides though some of the parameters and usage will need to change. If all you want to do is re-image in CASA 3.4 or later you can start with the fully calibrated data in the data package.

There are ALMA CASAguides for Science Verification data for each major release of CASA. Users are urged to consult these guides for the proper steps and syntax for ALMA data reduction. Note, in particular, that calibration tables created for CASA 3.3 are not compatible with later versions of CASA. Therefore the system temperature and water vapor radiometer tables should be regenerated using the tasks gencal and wvrgcal, respectively.